6243187920 has 160 divisors (see below), whose sum is σ = 19606745088. Its totient is φ = 1643249664.

The previous prime is 6243187901. The next prime is 6243187943. The reversal of 6243187920 is 297813426.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7832962 + ... + 7833758.

Almost surely, 2^6243187920 is an apocalyptic number.

6243187920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6243187920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9803372544).

6243187920 is an abundant number, since it is smaller than the sum of its proper divisors (13363557168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6243187920 is a wasteful number, since it uses less digits than its factorization.

6243187920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197 (or 1191 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 6243187920 is about 79013.8463815046. The cubic root of 6243187920 is about 1841.3462815752.

The spelling of 6243187920 in words is "six billion, two hundred forty-three million, one hundred eighty-seven thousand, nine hundred twenty".